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An all-in-one tool to restore/downgrade, save SHSH blobs, and jailbreak legacy iOS devices
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README.md

iOS-OTA-Downgrader

  • Downgrade/restore and jailbreak supported iOS devices to signed OTA firmwares
  • iPhone4Down: Downgrade your iPhone 4 on Linux (using ch3rryflower)
  • Linux and macOS are supported
    • Partial support for Windows - usage is not recommended
    • iPhone4Down is focused on Linux only - macOS and Windows are unsupported
  • Read the "How to Use" wiki page for a step-by-step tutorial
  • Read the "Troubleshooting" wiki page for tips, frequent questions, and troubleshooting

Other features

  • iOS 6.1.3 and 8.4.1 downgrades have the option to jailbreak the install
  • The latest baseband will always be used for 32-bit devices that have baseband. For iPhone 5C and A7 devices, iOS 10.3.3 baseband will be used
  • This script can also restore your device to other iOS versions that you have SHSH blobs for (32-bit devices only, iOS 5 and newer only)
  • This script can also be used to just enter kDFU mode (32-bit devices only)
  • This script can also be used to restore your iPhone 4 back to iOS 7.1.2 with the option to jailbreak the install

Supported devices

  • Identify your device here
  • iPhone 5C and iPad mini 3 devices are NOT supported!
    • iPhone 5C can still be restored to versions that you have SHSH blobs for
    • iPhone 4 devices also support restoring with SHSH blobs
  • iPhone4Down supports the iPhone 4 GSM (iPhone3,1) only
    • You are on your own if you attempt to restore to versions not within the supported range (except for iOS 7.1.2)
Target Version Supported Devices
iOS 10.3.3 A7 devices:
iPhone 5S
iPad Air 1
iPad mini 2 (except iPad4,6)
iOS 8.4.1 32-bit devices:
iPhone 4S
iPhone 5
iPad 2, iPad 3, iPad 4
iPad mini 1
iPod touch 5
iOS 6.1.3 iPhone 4S
iPad 2 (except iPad2,4)
iOS 7.1.2 iPhone 4 GSM (iPhone3,1)
iOS 5.0 to 6.1.3
For Pangu 32-bit users:
  • For 32-bit users using Pangu and normal method, install the latest untether for your iOS version here

Supported OS versions/distros

Tools and other stuff used